For this use Worker.dat
Please find the below sample template :
METADATA|WorkRelationship|PersonNumber|LegalEmployerName|DateStart|ActualTerminationDate|PrimaryFlag|WorkerNumber|WorkerType|RehireRecommendationFlag|OnMilitaryServiceFlag|ActionCode|ReasonCode|DateOfDeath
MERGE|WorkRelationship|XXTEST9|US1 Legal Entity|2018/01/01||Y|XXTEST9|E|Y|N|GLB_TEMP_ASG||
MERGE|WorkRelationship|XXTEST9|UK Legal Entity|2019/01/01||N|XXTEST9|E|Y|N|GLB_TEMP_ASG||
METADATA|WorkTerms|ActionCode|PersonNumber|LegalEmployerName|DateStart|WorkerType|AssignmentNumber|EffectiveStartDate|EffectiveEndDate|EffectiveLatestChange|EffectiveSequence|AssignmentType|PersonTypeCode|AssignmentStatusTypeCode|BusinessUnitShortCode|PrimaryWorkTermsFlag|SystemPersonType|ReasonCode
MERGE|WorkTerms|GLB_TEMP_ASG|XXTEST9|US1 Legal Entity|2018/01/01|E|XXTEST_WRKTERM9|2019/01/01|4712/12/31|Y|1|ET|Employee|SUSPEND_PROCESS|US1 Business Unit|Y|EMP|
MERGE|WorkTerms|GLB_TEMP_ASG|XXTEST9|UK Legal Entity|2019/01/01|E|XXTEST_WRKTERM9-2|2019/01/01|4712/12/31|Y|1|ET|Employee|ACTIVE_PROCESS|UK Business Unit|Y|EMP|
METADATA|Assignment|ActionCode|PersonNumber|LegalEmployerName|DateStart|WorkerType|AssignmentNumber|WorkTermsNumber|EffectiveStartDate|EffectiveEndDate|EffectiveLatestChange|EffectiveSequence|AssignmentType|PersonTypeCode|AssignmentStatusTypeCode|BusinessUnitShortCode|GradeCode|JobCode|LocationCode|DepartmentName|ManagerFlag|LabourUnionMemberFlag|ReasonCode
MERGE|Assignment|GLB_TEMP_ASG|XXTEST9|US1 Legal Entity|2018/01/01|E|XXTEST_ASSIGN9|XXTEST_WRKTERM9|2019/01/01|4712/12/31|Y|1|E|Employee|SUSPEND_PROCESS|US1 Business Unit|XXTEST_GRADE1|XXTEST_CFO|XXTEST_LOC12|XXTEST Department1|Y|N|
MERGE|Assignment|GLB_TEMP_ASG|XXTEST9|UK Legal Entity|2019/01/01|E|XXTEST_ASSIGN9-2|XXTEST_WRKTERM9-2|2019/01/01|4712/12/31|Y|1|E|Employee|ACTIVE_PROCESS|UK Business Unit|XXTEST_GRADE1|ADM|XXTEST_LOC12|XXTEST Department1|Y|N|
